According to a paper in the Journal of Vertebrate Paleontology, scientists have found the world's oldest known dinosaur embryos.
Still in well-preserved eggs, they are the oldest known embryos of any terrestrial vertebrates that dates back to 190 million years.
Researchers from the University of Toronto Mississauga made the startling discovery while analyzing the fossilized eggs that were originally found in South Africa.
Comparison of the embryo and adult dinosaur bones showed that as the animals matured, their neck and lower extremities grew much faster than the upper extremities and head.
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